43°4'Š / 82°9'V / Aukštis 181 m / 16:55 2026-05-19, America/Toronto (UTC-4)
nuo: 2026-05-19, 14:59
į: 2026-05-19, 17:58
Squalls with wind gusts up to 50 knots are expected or occurring in the area. Thunderstorms located over Lower Michigan are moving east at 45 knots and will move in after 3:30 P.M. ### Please continue to monitor alerts and forecasts issued by Environment Canada. For more information monitor Canadian Coast Guard radio or Weatheradio stations.
Southern Lake Huron
Mariners are advised to prepare for squalls. If underway, seek safe harbour immediately.
Environment Canada
2026-05-19, 15:01
nuo: 2026-05-19, 04:50
į: 2026-05-19, 20:52
Yellow warning - heat - in effect The first heat event of the season is expected to continue today. What: Daytime highs near 30 degrees Celsius. Humidex values near 36. When: Continuing today. Ending tonight. Additional Information: Temperatures may be cooler along the lake shores. ### For more information: https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/how-protect-yourself.html https://www.canada.ca/en/health-canada/services/climate-change-health/extreme-heat/who-is-at-risk.html Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or post reports on X using #ONStorm.
Sarnia - Petrolia - Western Lambton CountyTake action to protect yourself and others – extreme heat can affect everyone’s health. Determine if you or others around you are at greater risk of heat illness. Check on older adults, those living alone and other at-risk people in-person or on the phone multiple times a day.
Watch for the early signs of heat exhaustion in yourself and others. Signs may include headache, nausea, dizziness, thirst, dark urine and intense fatigue. Stop your activity and drink water.
Heat stroke is a medical emergency! Call 9-1-1 or your emergency health provider if you, or someone around you, is showing signs of heat stroke which can include red and hot skin, dizziness, nausea, confusion and change in consciousness. While you wait for medical attention, try to cool the person by moving them to a cool place, removing extra clothing, applying cold water or ice packs around the body.
Drink water often and before you feel thirsty to replace fluids.
Close blinds, or shades and open windows if outside is cooler than inside.
Turn on air conditioning, use a fan, or move to a cooler area of your living space. If your living space is hot, move to a cool public space such as a cooling centre, community centre, library or shaded park.
Follow the advice of your region’s public health authority.
Plan and schedule outdoor activities during the coolest parts of the day.
Limit direct exposure to the sun and heat. Wear lightweight, light-coloured, loose-fitting clothing and a wide-brimmed hat.
Never leave people, especially children, or pets inside a parked vehicle. Check the vehicle before locking to make sure no one is left behind.Environment Canada2026-05-19, 04:52
nuo: 2026-05-19, 14:00
į: 2026-05-20, 02:04
Yellow watch - severe thunderstorm - in effect Conditions are favourable for the development of severe thunderstorms that may be capable of producing strong wind gusts and large hail. What: Winds gusting 90 to 110 km/h. Hail up to ping pong ball sized. A tornado is also possible. When: This afternoon and evening. Additional information: Damaging wind gusts will be the main threat with these storms. ### Local utility outages are possible. Damage to roofs, fences, branches or soft shelters is possible. Large hail can cause significant damage and injury. Please continue to monitor alerts and forecasts issued by Environment Canada. To report severe weather, send an email to [email protected] or post reports on X using #ONStorm. For more information: https://www.ontario.ca/page/be-prepared-emergency.
Sarnia - Petrolia - Western Lambton CountyWhen thunder roars, go indoors! Lightning kills and injures Canadians every year.
Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.Environment Canada2026-05-19, 13:19nuo: 2026-05-19, 16:20
į: 2026-05-19, 19:19
Yellow warning - severe thunderstorm - in effect At 4:20 p.m. EDT, Environment Canada meteorologists are tracking a severe thunderstorm capable of producing damaging wind gusts and up to quarter size hail. Thunderstorm Location: Over Oil City Motion: Moving quickly to the east at 65 km/h Hazards: Wind: damaging (90 - 110 km/h) Hail: up to quarter size (up to 2.5 cm) Locations in the Path: Watford Kerwood Strathroy Mount Brydges Delaware ### Local utility outages are likely. Damage to roofs, fences, soft shelters or trees is likely. Large hail may cause significant damage and injury. Severe thunderstorm warnings are issued when imminent or occurring thunderstorms are expected to produce damaging hail, wind or rain.
Sarnia - Petrolia - Western Lambton CountyTake immediate cover if a thunderstorm approaches. If outside, protect yourself from flying debris and hail.
Emergency Management Ontario recommends that you take cover immediately if threatening weather approaches.Environment Canada2026-05-19, 16:22